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How to log in to NameCheap Private Mail (Webmail)?
You can access OX App Suite webmail at https://privateemail.com or http://mail.yourdomain.tld, if the appropriate DNS records are set up. Use your full Private Email address as the username and the password to log in.
Alternatively, you can log into webmail from within your Namecheap account.
Where can you log in to your NameCheap cPanel account?
NameCheap Customer Support
Live Chat: namecheap.com/help-center/live-chat/
Submit a Ticket: support.namecheap.com/index.php?/Tickets/Submit
For more information, you can visit NameCheap Knowledgebase.